[stu_k]

Anyone who's interested in this should also take a look at Functional Reactive Bindings: http://documentup.com/montagejs/frb/

Boasts of realtime, 2-way bindings between any JS object.

[nullzzz]

That's interesting! Do you have an idea how they implemented bindings between arbitrary JS objects? Polling?

[stu_k]

It uses ES5 getters and setters to replace the property and react to changes. This is what makes it realtime, after the set all bound properties will have their new values.